Add support for high number of compositions

It has been created a new performance test for jmeter to generate thousands of compositions and instances.
The following issues has been reported after the Investigation of the behavior of ACM-runtime and participant simulator:

• the GET actions of Api ACM-runtime do not have paginations, in particular the following endpoints:
  • GET /onap/policy/clamp/acm/v2/compositions
  • GET /onap/policy/clamp/acm/v2/compositions/{compositionId}/instances
  • GET /onap/policy/clamp/acm/v2/participants
• The monitoring should not scan all compositions and instances, but only compositions and instances that are in transitional state.

Pagination and default definition

it needs to define the default max page "paginationDefaultSize" that will be used by AC-runtime and it could insert into the parameters file:

runtime:
..........
..........
  acmParameters:
    paginationDefaultSize: 10
    toscaElementName: org.onap.policy.clamp.acm.AutomationCompositionElement
    toscaCompositionName: org.onap.policy.clamp.acm.AutomationComposition

Assuming that paginationDefaultSize = 10, the page and size of the pagination will be defined as the example below: